<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<form>
    <input type="radio" name="sex" value="male" checked>Male
    <br>
    <input type="radio" name="sex" value="female">Female
</form>
</body>
</html>